(HC-MB) Male O-Ring Boss - Rigid 4" x4" x1", A & I Products, Mfr#: A-MB-08-10

(HC-MB) Male O-Ring Boss – Rigid, Dim A (1): 0.500", Dim B (2): 2.745", Dim C (3): 1.849", Dim D (4): 1", Hose Inside Diameter: 1/2", Replaces: Dayco # HY08-10RA – Weatherhead # 08U-P10, Thread Size: 7/8 x 14